a picture, an idea, or an object that is built to explain how something else looks or works

a tiny particle of an atom that moves around the nucleus and has a negative charge

a tiny particle in the nucleus of an atom that has a positive charge

a tiny particle in the nucleus of an atom that is similar to a proton in size and has no charge

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Atoms

Ch 3 Les 4 Voc

Term	Definition
model	a picture, an idea, or an object that is built to explain how something else looks or works
electron	a tiny particle of an atom that moves around the nucleus and has a negative charge
nucleus	the central part of an atom
proton	a tiny particle in the nucleus of an atom that has a positive charge
neutron	a tiny particle in the nucleus of an atom that is similar to a proton in size and has no charge